gōng / sī / tóu / rù / duō / nián / yán / fā / zhōng / yú / tuī / chū / le / yì / zhǒng / zhuān / lì / yào / pǐn

公司投入多年研发，终于推出了一种专利药品。

After years of research and development, the company finally launched a patented drug.